Citation

Griffin MG, Resick PA, Galovski TE. J. Trauma. Stress 2012; 25(1): 25-32.

Affiliation

Department of Psychology and Center for Trauma Recovery, University of Missouri-St. Louis, St. Louis, Missouri, USA. michael_griffin@umsl.edu.

Copyright

(Copyright © 2012, International Society for Traumatic Stress Studies, Publisher John Wiley and Sons)

DOI

10.1002/jts.21667

PMID

22354505

PMCID

PMC3336195

Abstract

This study examined responses to loud tones before and after cognitive-behavioral treatment for posttraumatic stress disorder (PTSD). Seventy-four women in a PTSD treatment outcome study for rape-related (n = 54) or physical assault-related PTSD (n = 20) were assessed in an auditory loud tone paradigm. Assessments were conducted before and after a 6-week period of cognitive-behavioral therapy. Physiologic responses to loud tones included heart rate (HR), skin conductance (SC), and eye-blink electromyogram (EMG). Groups were formed based upon treatment outcome and included a treatment responder group (no PTSD at posttreatment) and a nonresponder group (PTSD-positive at posttreatment). Treatment was successful for 53 of 74 women (72%) and unsuccessful for 21 women (28%). Responders and nonresponders were not significantly different from each other at pretreatment on the main outcome variables. Treatment responders showed a significant reduction in loud tone-related EMG, HR, and SC responses from pre- to posttreatment (partial η(2) = .24, .31, and .36, respectively; all p < .001) and the EMG and HR responses were significantly smaller than nonresponders at posttreatment (partial η(2) = .11, p = .004 and .19, p < .001, respectively). Successful cognitive-behavioral treatment of PTSD is associated with a quantifiable reduction in physiological responding to loud tones.

Language: en